[242] West (G. S.). — Algae. Vol. I. Cambridge 1916. 



T243] — and West (W.|. — The British freshwater Phytoplankton 

 with special Reference to the Desmid-plankton ant the Dis- 

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[244] Woodhead (E. W.». — Ecology c 



bourghood of Huddersfield {Linn. 

 XXXVIII, 1906). 



TOME XXX II 

 Page 527, lij 



TOME XXXI\ 

 Page 379, lig 



Page 426,ligne 6 (du bai 

 Page 510, derniere ligae 



t Coajuguees, mettre Chlorophyci 

 le : Pleurocoecus lire Protococc 

 nt une loi generate a ..., lire suiv 



Villers-Citterets. 



